SONY CDP-222ES
¥ 66,800 (released in 1986)
Commentary
ES series CD player.
The digital filter uses a 96th order 2 x oversampling FIR type digital filter to improve the group delay characteristics and waveform reproducibility.
The analog filter is a 5th-order active analog filter.
The D/A converter is equipped with a D/A converter for the left and right channels independently. This reduces the phase difference between the two channels to 0, improving the sound spread in each direction of vertical, horizontal, and depth.
The D/A converter uses a high-speed 16-bit type.
The servo circuit uses S servo, a predictive control method.
When a newly developed RFIC detects the size of a fault on the disk, the S servo uses a microcomputer to predict the periodicity of the fault by high-speed calculation and controls the servo amount appropriately. The prediction accuracy is as high as 8,000 times per second, and the accuracy is constant regardless of the inner and outer circumference of the disk at different rotational speeds. This greatly improves the tracing capability and minimizes disturbance of servo current.
Newly developed linear motor drive optical mechanism is adopted for the mechanism part.
In the base of this mechanism, a cemented base unit is used, which is made by composite molding of special ceramic containing powder with metals. It has excellent characteristics that it itself does not vibrate easily and that even if it vibrates, it quickly attenuates.
Combined with the overall floating structure, the mechanism is less susceptible to vibration.
It uses a third generation LSI with higher integration and improves reliability by simplifying peripheral circuits.
In addition, this LSI makes up a high-precision unilinear converter system, and by fully synchronizing the digital circuit after the digital filter with one master clock, beat generation is suppressed to 0 in principle.
Vibration is reduced by using a large insulator and a highly rigid chassis.
An audio dedicated carbon resistor is used for the analog circuit.
We are also improving sound quality by using OFC power cords with polarity indication, gold-plated output terminals, non-magnetic OFC heat sinks, and copper screws.
The power supply section uses a large-capacity power transformer with digital / analog independent power supply circuit.
Equipped with color concentrated display with music calendar.
Equipped with a shuffle play function.
Equipped with 5-mode repeat function of 1 track / all tracks / A-B / program / shuffle.
Equipped with a timer switch to which an external timer can be connected for off / normal play / shuffle play.
Equipped with Music Search, which enables fast forward / fast reverse while listening to the sound.
Equipped with a headphone port with volume.
It is equipped with an auto space function that takes a space of 3 seconds between songs.
Equipped with an index search.
It is equipped with synchronized terminals and subcode terminals that can be easily connected to Sony decks.
Wireless remote control is included.
Model Rating
| Type | CD Player |
| Reading system | Non-contact optical reading (using semiconductor laser) |
| Laser | GaAlAs double hetero diode |
| Number of revolutions | 200 ~ 500 rpm (CLV) |
| Playing speed | 1.2m/s ~ 1.4m/s (constant) |
| Error correction method | Sony Super Strategy Cross Interleaved Read-Solomon Code |
| Number of channels | 2 Channel |
| Compound | 16-bit straight line |
| Frequency characteristic | 2 Hz to 20 kHz ± 0.3 dB |
| Total harmonic distortion factor | 0.003% or less (EIAJ) |
| Dynamic range | 95 dB or more (EIAJ) |
| Wow and flutter | Below the measurement limit (± 0.001% W. peak) (EIAJ) |
| Output level | 2Vrms(MSB) |
| Headphone output level | 28 mw (32 Ω) |
| Power consumption | 11W |
| External dimensions | Width 430x Height 100x Depth 335 mm |
| Weight | 5.1kg |
| Attachment | Wireless Remote Control RM-D350A |